Substitute status areas with drop areas when issue is dragged

Description

This is a follow-up issue of

.

Description:

Scrolling while dragging is not supported by Dragula.js, therefore ESJF-107 introduced a script that allows to scroll while dragging an issue, but it requires weird “pushing” mouse movement to work.

We should consider changing how this works to eliminate need of scrolling at all. This can be achieved with substituting status areas with about 200px high “drop-zones” when the issue is dragged, so it can be easily placed in the desired status. This solution is very similar to how Jira handles it.

A/C:

  • Dragging issue hides issues in columns and instead “drop areas” are shown.

  • Remove “scroller” from board.ftl script.

Linked issues

relates to
Issue Type Icon ESFJ-107 Allow issue transition on board by column statuses Priority: Medium Assignee:
Done
Issue Type Icon ESFJ-938 Share board selectors improvemment for e2e drag and drop tests Priority: Medium Assignee:
Withdrawn